http://nsdl.library.cornell.edu/websites/expertvoices/connectingnews/archives/3133 The NSDL Middle School Portal 2 project is hosting this blog to encourage teachers to use current science news as teaching opportunities. The related middle level, grades 5-8 content standards of the National Science Education Standards are included as well as ideas for turning the news event into an inquiry-based lesson. Fri, 08 Mar 2013 18:01:02 +0000 http://wordpress.org/?v=2.3.3 http://nsdl.library.cornell.edu/websites/expertvoices/connectingnews/archives/3133#comment-2845 Steven Jester Wed, 26 Dec 2007 02:28:15 +0000 http://nsdl.library.cornell.edu/websites/expertvoices/connectingnews/archives/3133#comment-2845 What exactly are the compound ingredents in acid, because I am trying to make acid that is weak enough to not be able to melt the test tube? What exactly are the compound ingredents in acid, because I am trying to make acid that is weak enough to not be able to melt the test tube?

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